Not only do FI's doing this for 20-30 years get frightened, some even don't want the extra stress anymore and possibility to fail a test after 20-30 years and they give up their FI, resulting in less FI's but a huge loss in knowledge and experience .
New FI's of course are capable but I always like it when a school has a few older FI's with experience and knowledge where another FI can go for guidance/answers etc.
I understand the higher standard the UK CAA wants but the result will be a lower standard on the practical side.....